WARNING GRAPHIC CONTENT: Armed robbers shoot father and son dead on packed bus

Around 20 passengers including a mum with a child carrying a balloon in his hands fled to safety as the pair ambushed their victims after they left a bank with nearly £12,000 from the sale of a van.

Jose Changoluisa, 63, and his son Fernando, 33, died of gunshot wounds after being pistol-whipped by their attackers as they tried to resist.

Cameras on the bus captured the violent scenes, including the moment Jose was shot twice in the back as other passengers screamed in horror and the bullets tore his T-shirt open.

ARMED: The armed robbers pull out their guns (circled) as they carry out their shocking attack on a crowded bus [YOUTUBE]

He collapsed and died shortly after rushing to the aid of his dying son who was dragged off the bus by the well-built robbers, still clutching onto the bag despite his injuries.

A camera in the driver's cab recorded the anguishing moments Jose - his T-shirt ripped and covered in blood - climbs off the bus to tend to his dying son lying on the blood-stained cobbled street before collapsing exhausted on the pavement nearby.

Shocked passers-by stopped to stare but could do little to help as the attackers had already fled with the cash.

The attack happened in Amaguana, a village near the capital Quito.

A post-mortem showed Jose received three bullet wounds and his son six - four to the head.